3. Number of children in six different classes are given below. Represent the data on a bar graph.
 
(a) How would you choose a scale?
(b) Answer the following questions:
(i) Which class has the maximum number of children? And the minimum?
(ii) Find the ratio of students of class sixth to the students of class eight.

Answers (1)

(a) The scale : 1 unit = 10 children.

(b) (i) Class fifth has the maximum number of children. 

Whereas, class tenth has the minimum number of children

(ii) Number of students in class sixth = 120

Number of students in class eight = 100

Therefore, the required ratio = \frac{120}{100}

= \frac{6}{5}

Required ratio is 6:5

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